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Effect of alloy elements on the morphology transformation of TiB2 particles in Al matrix
Jing Sun1, Xiaobo Zhang1, Yijie Zhang1
1State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China.
Abstract:
To reveal the effect of alloy element on the morphology of in situ TiB2 particles, a series of TiB2 particles with various morphology were obtained via controlling synthesis process. Si and Cu can affect the morphology transformation of TiB2 particles significantly. Si preferentially adsorbed on (101¯1), (112¯0) and (12¯13¯) planes resulting in the polyhedron morphology of TiB2. Cu adsorbed on (101¯0) preferentially leading to the minimum aspect (the ratio of the diameter and thickness).
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